Envelop.



No. 68|,595. Patented Aug. 27, IQOI. N. H. WALCOFF &. M. EPSTEIN.

ENVELOP.

(Application led Feb. 11, 1901.) (No Mod.)

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TTED STATES PATENT OEEICE.

NATHAN H. VALOOFF AND MOSES EPSTEIN, OF NEWT YORK, N. Y.

ENVELOP.

SPECIFICATION forming part of Letters Patent No. 681,595, dated August '27, 1901. Application filed February 11, 1901. Serial No. 46,847. (No model.)

To @ZZ whom it may concern:

Beit known that we, NATHAN H. WALCOEE' and MOSES EPSTEIN, of the borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Envelope, of which the following is a specification.

This invention relates more particularly to thatclass of closure-sheets known as lettersheet envelope, and it seeks to provide an envelop of this character embodying a novel correlation of parts, whereby the fullest eX- tent of use of the sheet can be obtained and the same when folded up made secure from accidental opening during ordinary handling in transmission through the mails, and which possess certain advantages over similar envelops of this type heretofore provided, especially in the ease and accuracy in which the sheet may be opened without danger of tearing the body or writing-surface or mutilating the same.

The invention consists in a letter-sheet formed of a single blank having its edges and ends formed and arranged to coact when folded up in the mannerhereinafter described in detail, and specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which-'- Figure 1 illustrates our improved lettersheet envelop closed u p ready for transit. Fig. 2 is a View of the blank sheet. Figs. 3 and e illustrate the manner in which the sheet is folded up to form the closed letter-sheet envelop, and Figs. 5 and 5a illustrate the manner in which the envelop-sheet is opened.

Referring now to the accompanying drawings, in which like characters indicate like parts in all the figures, l designates the body of the sheet having three parts-ea central part a, the back of which forms the address side and has suitable ruling and stamp-indieating points, as indicated in Fig. l, a lower part b, and an upper part c. rPhe central and upper parts a and c are of the same width, and the upper part c at each end has a line of perforations c' extending its full height, the purpose of which will presently appear. The central part a has its ends a', Which form, practically, continuations of the perforated ends or iiaps c' of the upper section, and the said ends a' have a glued surface ax on the inner face. The lower part or iap ZJ is of a slightly less width than the portions a and c, whereby When folded upon the part a its ends b b Will lie in a plane inside the end flaps or extensions c and a. The end Hap c of the part o is somewhat wider than' the glued surfaces of the ends a of the member a, so as to bring the lines of perforations o c' in a plane inside of the said glued surfaces, the reason for which will presently appear.

c2 designates a tongue extension on the upper end of the part c, the back edge c3 of which is gummed. The gummed extension or iiap cZ extends from the line of perforations c at one end to the line of perforations c at the opposite end, whereby to leave cutout corners and thereby make the ends cX of a length, the same as the gummed extensions a', such cut-out portions a: also providing for conveniently extending the loose ends of the tearing cord or Wire d, which is made fast on the front side of the sheet on the folding-line CZ of the tongue c2, as shown.

From the foregoing, taken in connection with the accompanying drawings,it is thought the manner in which our envelop-sheet is used and its advantages will be readily apparent.

To fold the letter-envelop up ready for mailing, the bottom flap b is turned up over the back of the central part a, as shown in Fig. 3, the edges bx, by reason of the flap Z9 being narrower than the part a, folding over said part a in a plane inside of the gummed surface ax. The top flap c is then turned down on the parts Z) and a and the end iiaps 0X made to adhere to the gummed surface ax, the line of perforations folding down inside of and free of the said gummed surface ax. The gummed iiap c2 is turned under, so its gummed surface cs is made to adhere to the outside of the lower or folded end of the member b. This completes the envelop, with the ends of the wire or string sufficiently projected at the upper edge of the envelop to indicate where to tear in a longitudinal direction, the two lines of transverse perforations on the back indicating where the transverse or end tearings are to be made. It is obvious that the end tearing might be facilitated by also providing the gummed ends a' with a line of perforations to register with the perfora- IOO tions 0X; but this is not absolutely necessary, as the firm adhesion of the ends a to the ends c' will cause the part c to tear off evenly, and, furthermore, an advantage is gained by not perforating the ends a as it leaves the address-face of the envelop perfectly plain, free of unsightly markings or perforations, and to all appearances gives it the shape and looks of an ordinary envelop, the back of the cnvelop-sheet being similar tothe front, with the exception of the end lines of perforations. This is an advantage, as it avoids the flap or crosswise folds common in many forms of foldable letter-sheets, and it provides a very simple andeconomical sheet-envelop which cannot when closed up be easily tampered with without notice. Furthermore, its manner of opening is so simple that very ignorant persons can readily understand how it is done. The pull on string or wire makes the long tear, (see Fig. 5,) and the perforations on ends indicate where cross tears are to be made (see Fig. 5a) to allow for the opening out of the letter without danger of the part Written upon being mutilated.

Te are aware that itis common to provide envelops with the string or wire opener and with perforated end flaps.

Our invention, so far as we know, differentiates from the types of letter-sheet envelops heretofore provided in the novel correlation of particularly-formed edges and ends, whereby an improved form of letter-sheet envelop isl provided.

We therefore claim, and desire to secu re by Letters Patent, the following:

l. A new and improved combined letter sheet and envelop formed of a single sheet, having three parts, a central one a, an upper one c, and a lower one b, the upper section having a tongue extension gummed on the rear side, a wire or cord made fast on the fold-line of the said tongue, said part c, having end extensions and perforations at the inner end of said extension, the part a, having end iiaps gummed on the inside that form eontinuations of the perforated iiaps, the lower section b, being of a less width than the parts a and c, whereby when folded up, its edges will lie in a plane inside the end flaps of the parts a and c, for the purposes specified.

2. A new and improved combined letter sheet and envelop formed of a single sheet, having three parts, foldable upon each other, a central one a, an upper one c, and a lower one b, the upper and central parts having a like width, the central part having the outer edges at the back gummed, the upper part c, having a line of perforations c', at each end, said lines of perforations e c, ruiming parallel with the outer edges and disposed in planes inside of the gummed surfaces of the part a., whereby when the part c, is folded over a, said lines of perforations will come over the body at points inside of the said gummed surfaces, the part c, having an extension or ilap c2, gummed on its rear face, and the part b, being of a less width than the space between the gummed ends of part a, all being arranged as shown and for the purposes described.

NATHAN H. VALCOFF. MOSES EPSTEIN.

lVitnesses:

SAM GINsBERG, MANFRED S. KELso, LEON BERNHEIM. 

